LEETCODE - [1271] hexadecimal magic number

 

 

 

 

 

 

 

 

 

class Solution {
public:
    string toHexspeak(string num) {
        stringstream ss;
        Long  Long Inter;
         // turn hex 
        String hexret;
        ss << num;
        ss >> inter;
        ss.clear();
        ss << hex << inter;
        SS >> hexret;
         // Get conversion relationship 
        Map < char , char > Transform = {
            {'a','A'},
            {'b','B'},
            {'c','C'},
            {'d','D'},
            { ' And ' , ' E ' },
            {'f','F'},
            {'1','I'},
            { ' 0 ' , ' The ' }
            };
        for(int i = 0; i < hexret.size(); ++i){
            if(transform.count(hexret[i]) == 0){
                return "ERROR";
            }
            hexret[i] = transform[hexret[i]];
        }
        return hexret;
    }
};